Use f64 instead.

src/factor_graph.rs

@@ -113,7 +113,7 @@ pub struct LikelihoodFactor {
     id: usize,
     mean: VariableId,
     value: VariableId,
-    variance: f32,
+    variance: f64,
 }
 
 impl LikelihoodFactor {
@@ -122,7 +122,7 @@ impl LikelihoodFactor {
         id: usize,
         mean: VariableId,
         value: VariableId,
-        variance: f32,
+        variance: f64,
     ) -> LikelihoodFactor {
         if let Some(variable) = variable_arena.get_mut(mean) {
             variable.attach_factor(id);
@@ -183,7 +183,7 @@ pub struct SumFactor {
     id: usize,
     sum: VariableId,
     terms: Vec<VariableId>,
-    coeffs: Vec<f32>,
+    coeffs: Vec<f64>,
 }
 
 impl SumFactor {
@@ -192,7 +192,7 @@ impl SumFactor {
         id: usize,
         sum: VariableId,
         terms: Vec<VariableId>,
-        coeffs: Vec<f32>,
+        coeffs: Vec<f64>,
     ) -> SumFactor {
         if let Some(variable) = variable_arena.get_mut(sum) {
             variable.attach_factor(id);
@@ -218,7 +218,7 @@ impl SumFactor {
         variable: VariableId,
         y: Vec<Gaussian>,
         fy: Vec<Gaussian>,
-        a: &Vec<f32>,
+        a: &Vec<f64>,
     ) {
         let size = a.len();
 
@@ -313,21 +313,21 @@ impl SumFactor {
     }
 }
 
-fn v_win(t: f32, e: f32) -> f32 {
+fn v_win(t: f64, e: f64) -> f64 {
     math::pdf(t - e) / math::cdf(t - e)
 }
 
-fn w_win(t: f32, e: f32) -> f32 {
+fn w_win(t: f64, e: f64) -> f64 {
     let vwin = v_win(t, e);
 
     vwin * (vwin + t - e)
 }
 
-fn v_draw(t: f32, e: f32) -> f32 {
+fn v_draw(t: f64, e: f64) -> f64 {
     (math::pdf(-e - t) - math::pdf(e - t)) / (math::cdf(e - t) - math::cdf(-e - t))
 }
 
-fn w_draw(t: f32, e: f32) -> f32 {
+fn w_draw(t: f64, e: f64) -> f64 {
     let vdraw = v_draw(t, e);
     let n = (vdraw * vdraw) + ((e - t) * math::pdf(e - t) + (e + t) * math::pdf(e + t));
     let d = math::cdf(e - t) - math::cdf(-e - t);
@@ -338,7 +338,7 @@ fn w_draw(t: f32, e: f32) -> f32 {
 pub struct TruncateFactor {
     id: usize,
     variable: VariableId,
-    epsilon: f32,
+    epsilon: f64,
     draw: bool,
 }
 
@@ -347,7 +347,7 @@ impl TruncateFactor {
         variable_arena: &mut VariableArena,
         id: usize,
         variable: VariableId,
-        epsilon: f32,
+        epsilon: f64,
         draw: bool,
     ) -> TruncateFactor {
         if let Some(variable) = variable_arena.get_mut(variable) {